Abstract:
Systems and methods for attaching a cover to a text body to create bound documents with floating and attached spines are described. In some embodiments, a solid pressure sensitive adhesive film is applied between a cover and the side hinge areas of a text body, and a cover is bound to the side hinge areas of the text body with pressure. A solid pressure sensitive adhesive tape may be dispensed from an adhesive dispenser that includes a plug-in cartridge housing, a supply spool, and a take-up spool. In other embodiments, an adhesive sheet that includes a hot melt adhesive film and a backing is applied to the text body, with the hot melt adhesive film in contact with the side hinge areas and the spine of the text body. The hot melt adhesive is exposed in areas corresponding to the side hinge areas of the text body for attaching the cover to the text body. In one embodiment, an adhesive sheet includes a hot melt adhesive film and a backing layer that is attached to the hot melt adhesive film and has one or more slits extending in a substantially longitudinal direction. The slitted backing layer is configured to expose the hot melt adhesive upon stretching of the backing layer in a direction substantially orthogonal to the longitudinal direction.
Abstract:
An adhesive application assembly is configured for use in a book binding station that includes a saddle for supporting a plurality of sheets. The adhesive application assembly includes an adhesive applicator, a movable support arm supporting the adhesive applicator, and a drive mechanism. The drive mechanism is coupled with the support arm and is configured to move the support arm and the adhesive applicator toward the saddle to apply adhesive to an outermost sheet on the saddle.
Abstract:
A scanning system includes a scanner accessory which is operationally supported by a wider-purpose wireless handheld communications device. The communications device may be a personal digital assistant (PDA), a cellular phone, a combined PDA/cellular phone, or a similar device that enables wireless communications. The scanner accessory is adapted for freehand scanning and includes an image sensor, at least one navigator, and data transfer circuitry that is compatible with exchanging information with the communications device, including outgoing captured image information and incoming scan control information for controlling scanning operations by the scan accessory. Simultaneous with capturing image information by the image sensor, the navigator tracks the position of the image sensor relative to a document being scanned, so that the image information can be “position-tagged” to form an electronic image for display at the communications device. Alternatively, the scanning capability can be integrated into the wireless handheld communications device.
Abstract:
A printer having a transparency film discrimination system is disclosed. The printer includes a feed mechanism, an illumination source, a detector, and a processor. Light from the illumination source is reflected on or transmitting through the print medium (such as a transparent film) and is detected by the detector. The detected light is analyzed to determine the type of the medium. If the determined type of the print medium is not acceptable for the printer, then control signal is provided to the printer to halt the printing process as to avoid damage to the printer.
Abstract:
A printer is provided with a transmit electrode and a receive electrode with a dry-toner cartridge located therebetween. The transmit and receive electrodes act as two plates of a capacitor, with the toner within the toner cartridge making up a portion of the dielectric between the two capacitor plates. An oscillating transmit signal is then applied to the transmit electrode, and a signal corresponding to the capacitance between the opposing electrodes is detected. The changing capacitance due to the changing toner quantity causes a change in the received signal. The value of the received signal is then converted into the quantity of toner residing between the opposing electrodes, and this quantity is displayed to the user. Arrangements of transmit and receive electrodes may be employed within the printer to not only sense the overall quantity of toner but the distribution of toner within the toner cartridge.
Abstract:
A scanning device and method of forming a scanned electronic image include an imaging sensor and at least one navigation sensor. For an embodiment, the imaging sensor enables sensing of color images. In the preferred embodiment, the imaging sensor is a linear array of sensor elements, with a two-dimensional navigation sensor array at each end. The scanning device has three degrees of freedom, since position information from the navigation sensors allows manipulation of an image signal from the imaging sensor to reduce distortion artifacts caused by curvilinear scanning. Acceptable sources of the position information include printed matter and contrast variations dictated by variations in the inherent structure-related properties of the medium on which the scanned image is formed. Inherent structure-related properties can also include color contrast. Illumination for optimal operation of the navigation system may be introduced at a grazing angle in some applications or in the normal to a plane of the original in other applications, but this is not essential.
Abstract:
The volume of ink drops ejected from ink jet printers is temperature dependent because physical properties of the ink, such as surface tension and viscosity, depend on the ink temperature. The volume of the ejected ink drop strongly influences the size of the printed spot and this size effects the quality of the recorded text and graphics. The temperature of the ejected drop depends on the temperature of the drop ejection mechanism. The present invention measures the temperature of the ejected drops with a temperature sensor placed within the trajectory of the drops. The printhead carriage mechanism aligns the drop ejector and the temperature sensor. Then, the drop ejector ejects multiple drops onto the temperature sensor. The temperature sensor may reside in an ink drop collection chamber having a capillary device for wicking ink away from the temperature sensor to a waste ink accumulator.
Abstract:
A plurality of inkjet printhead elements are arranged to form a pagewide printhead array. The elements are secured to a flexible interconnect to allow for communication between the individual elements and a printer controller. The elements are arranged in the array so that one or more nozzles overlap nozzles of the two adjacent elements. The printer controller specifies the desired drivers of the heater elements to be actuated in commands sent to the first element in the array over the flexible interconnect. The printer elements monitor the interconnect to determine whether the command specifies a heater element under their control. The printer elements then actuate the specified heater element to cause an ink droplet to be ejected from a nozzle corresponding to the selected heater element.
Abstract:
A novel, wide inkjet printhead and method of forming said inkjet printhead is disclosed, wherein a pattern of orifices are formed, using a step-and-repeat process, in a flexible tape using laser ablation or other suitable etching devices. The location of the orifices corresponds to where ink will be ejected from the inkjet printhead. The pattern of orifices may extend to any length without difficulty in aligning the orifices, since the tape may be continuous along the entire length of the printhead.
Abstract:
This patent application discloses a method and apparatus useful for eight-level halftone thermal ink jet printing by printing with droplets of ink with volumes weighted in a binary sequence. Three (3) binary-weighted drop generators which are fired in sequence are useful in an eight-level, four color printing process and additionally may be employed with a clear ink vehicle drop generator in order to reduce optical density of single small dots in a given pixel area to thereby reduce grainyness.This method and apparatus are also adapted for four color printing with a chosen number of rows of binary-weighted drop generators, including untoned vehicle if desired, in order to achieve color printing of pixels having desired color and optical density.